Patents by Inventor Paula P. Chee

Paula P. Chee has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).

  • Somatic embryogenesis and transformation of squash
    Patent number: 5677157
    Abstract: A method involving somatic embryogenesis of various squash (Cucurbita pepo L.) tissues is described which can be used for the regeneration of normal squash plants. This method is also used for the transfer and integration of genetic materials into the genome of squash plants, which belong to the family Cucurbitaceae, followed by regeneration of such transformed plants. Thus regenerated transformed whole squash plants are produced by this method.
    Type: Grant
    Filed: December 5, 1994
    Date of Patent: October 14, 1997
    Assignee: Asgrow Seed Company
    Inventor: Paula P. Chee
  • Agrobacterium mediated transformation of germinating plant seeds
    Patent number: 5376543
    Abstract: A non-tissue culture process using Agrobacterium-mediated vectors to produce transgenic plants from seeds of such plants as the common bean and soybean.
    Type: Grant
    Filed: December 7, 1992
    Date of Patent: December 27, 1994
    Assignee: The University of Toledo
    Inventors: Paula P. Chee, Stephen L. Goldman, Anne C. F. Graves, Jerry L. Slightom
  • Agrobacterium mediated transformation of germinating plant seeds
    Patent number: 5169770
    Abstract: A non-tissue culture process using Agrobacterium-mediated vectors to produce transgenic plants from seeds of such plants as the common bean and soybean.
    Type: Grant
    Filed: June 21, 1990
    Date of Patent: December 8, 1992
    Assignee: The University of Toledo
    Inventors: Paula P. Chee, Stephen L. Goldman, Anne C. F. Graves, Jerry L. Slightom
  • Gas driven microprojectile accelerator and method of use
    Patent number: 5066587
    Abstract: A foreign substance, such as DNA, is injected into plant cells or tissue by a biological ballistical insertion technique. High pressure propellant gas is employed to accelerate the macroprojectile containing microprojectiles coated with the foreign substance. A movable macroprojectile stop mechanism is provided between an upper injection chamber and a lower sample-holding chamber so that multiple shots of macroprojectiles can be made without disrupting the vacuum in the lower chamber. The stop mechanism includes removable stopper plugs for stopping the macroprojectile. A vacuum seal is provided between the stop mechanism and the lower chamber.
    Type: Grant
    Filed: January 26, 1990
    Date of Patent: November 19, 1991
    Assignee: The Upjohn Company
    Inventors: Lawrence D. Jones, Paul T. Frey, David D. Gleason, Paula P. Chee, Jerry L. Slightom